Medical Definition of Cystosarcoma

1. A sarcoma in which the formation of cysts or cystlike foci has occurred.
Cystosarcoma phyllodes, a circumscribed or infiltrating fibroadenomatous tumour of the breast or other organs that may be partly cystic; the stroma is cellular and resembles a fibrosarcoma; the tumour can be either benign or malignant.
(05 Mar 2000)

Cystosarcoma Pictures

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